Search Images Maps Play YouTube News Gmail Drive More »
Sign in
Screen reader users: click this link for accessible mode. Accessible mode has the same essential features but works better with your reader.

Patents

  1. Advanced Patent Search
Publication numberUS2027619 A
Publication typeGrant
Publication dateJan 14, 1936
Filing dateApr 27, 1935
Priority dateApr 27, 1935
Publication numberUS 2027619 A, US 2027619A, US-A-2027619, US2027619 A, US2027619A
InventorsRutherford Charles E
Original AssigneeWiremold Co
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Conduit for electric wiring
US 2027619 A
Abstract  available in
Images(1)
Previous page
Next page
Claims  available in
Description  (OCR text may contain errors)

Jan. 14, 1936. c. E. RUTHERFORD 2,027,619

CONDUIT FOR ELECTRIC WIRING Filed April 27, 1935 /3 /2 -17 '/a f 1 4 /g INVENTOR CHARLES E.RUTHERFO R0 BY M, y W W ATTORNEYS I Patented Jan. 14, 1936 CONDUIT FOR ELECTRIC wmma Charles E. Rutherford, West Hartford, com, assignor to The Wiremold Company, Hartford, Conn., a corporation or Connecticut Application April 27 1935, Serial No. 18,555

1 Claim.

My invention relates to conduits for electric wiring. Its object is to provide a conduit which can be used as an overfloor raceway, which is cheap, simple, strong, easy to installand safe, and which, when installed on the floor of a room, does not project in such a way as to present an obstacle to a person walking over the floor, particularly an obstacle over which a person will be likely to trip -or stumble.

10 i In the accompanying drawing Fig. 1 is a view, partly in elevation section on the line |-l of Fig. 2, of my conduit installed Fig. 2 is a longitudinal section on the same scale 15 on the line 2-2 of Fig. 1.

It, in Fig. 1, is a floor; II is the base member of the raceway, which is formed of metal in the shape of a channel capable of receiving electric wires, and is provided at intervals with countersunk holes I2 for screws l3 by which it is fastened to the floor. The lateral vertical side portions.

ll, of the channel are bent to form projections or beads l5. 7

I6 is the cover member, also of metal, which 5 is made in the form of ramp or threshold, and which at its edges 20 comes substantially in con tact with the floor so that when it is installed on the floor it will not present an obstacle over which a person will trip or stumble. I

3o I'he vertical projecting side portions M of the channel member I I are of such length that when the cover member I6 is put in place the lower side of that cover member rests upon and is supported at two points by the side portions l4 where- 35- by additional strength, rigidity and resistance to deformation are afforded.

In the installation of my conduit the necessary number of lengths of the channel member H are laid end to end upon the floor and fastened to it 40 by the screws IS; a joint between two such sections as shown at 11, Fig. 2. Subsequently lengths of the cover member l6 are installed in such a way as to break joints with the channel member, a joint of the cover member being shown at l8,

Fig. 2. The cover member I6 is applied by simply 5 pressing it down upon the already installed channel member H, so that the internally projecting portions IQ of the cover member snap over and are held in place by the beads IS on the channel member, the metal of one or both members being in thin enough to provide sufficient temporary yield or spring for that purpose.

Whilethe device may be made of the size shown in the drawing, for most uses it can be made smaller;

s I claim:

' In a conduit for electric wiring suitable i'or installation as a floor raceway, a channel member adapted to be fastened to the floor and having .upwardly extending flanges, said channel member being adapted to receive electric wires, a cover member of substantially greater width than said channel member for closing said channel and adapted "to extend into substantial contact with the floor at its outer edges, said cover member 5' being so shaped as not to present an obstacle to a person walking over the floor and having flanges extending inwardly from the outer edges thereof the two members together constituting an enclosure for electric wires, projections on the upwardly extending flanges of said channel member cooperating with the inwardly extending flanges on the cover member to hold the cover member in place after it is snapped ontothe channel member; the said upwardly extending flanges of said channel member tending to support the upper portion of the cover member whereby additional strength and rigidity are secured.

CHARLES E. RUTHERFORD.

Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US2509559 *Apr 28, 1948May 30, 1950Cardinell John DDrafting instrument
US2886859 *Dec 27, 1954May 19, 1959Johns ManvilleSound-absorbing wall treatment
US3524477 *Nov 20, 1968Aug 18, 1970Robertshaw Controls CoPlastic pneumatic transmission duct installation
US5383318 *Nov 4, 1992Jan 24, 1995Herman Miller, Inc.Raceway cable retention and accommodation apparatus
US5385431 *Apr 23, 1993Jan 31, 1995Miller Pipeline CorporationFlow conduit for traversing a traffic way
US6481036 *Aug 23, 2001Nov 19, 2002Checkers Industrial Products, Inc.Modular cable protector having removable wheel chair ramps
US6747212Aug 4, 2003Jun 8, 2004Stephen K. HenryAdapter assembly for removably connecting cable protectors
US7145078Apr 21, 2006Dec 5, 2006Henry Stephen KDetachable hand rail for modular cable protectors
US7309836Oct 31, 2005Dec 18, 2007Peterson Systems International, Inc.Cable protection system
US7592547Dec 14, 2007Sep 22, 2009Peterson Systems International, Inc.Cable protection system
US7595450Mar 26, 2007Sep 29, 2009Peterson Systems International, Inc.Tapered transition ramp for cable protector
US7674980Mar 9, 2010Peterson Systems International, Inc.Tapered transition ramp for cable protector
US7795535Sep 14, 2010Peterson Systems International, Inc.Tapered transition ramp for cable protector
US7838772Jul 23, 2009Nov 23, 2010Peterson Systems International, Inc.Tapered transition ramp for cable protector
US7844830Nov 30, 2010Kabushiki Kaisha ToshibaInformation processing apparatus and audio output method
US8038015Oct 18, 2011Leviton Manufacturing Co., Ltd.Equipment rack panel system and method
US8061534Nov 22, 2011Leviton Manufacturing Co., Inc.Equipment rack panel system and method
US8288652Apr 15, 2009Oct 16, 2012Checkers Industrial Products, LlcTapered transition ramp for cable protector with offset center sections
US8342211 *Jan 1, 2013Fenix Energy Solutions Ltd.Protective pipe cover and support apparatus
US8791363Oct 16, 2012Jul 29, 2014Checkers Industrial Products, LlcTapered transition ramp for cable protector
US20060238926 *Apr 21, 2006Oct 26, 2006Henry Stephen KDetachable hand rail for modular cable protectors
US20070095560 *Oct 31, 2005May 3, 2007Peterson Systems International, Inc.Cable protection system
US20070143602 *Nov 28, 2006Jun 21, 2007Kazuyuki SaitoInformation processing apparatus and audio output method
US20070246259 *Mar 26, 2007Oct 25, 2007Peterson Systems International, Inc.Tapered transition ramp for cable protector
US20070248412 *Apr 20, 2006Oct 25, 2007Lubanski Thomas MTapered transition ramp for cable protector
US20080062655 *Sep 10, 2007Mar 13, 2008Leviton Manufacturing Co., Inc.Equipment rack panel system and method
US20080093102 *Dec 14, 2007Apr 24, 2008Peterson Systems International, Inc.Cable protection system
US20080181353 *Sep 20, 2007Jul 31, 2008Masako OgataSensor Device, and Portable Communication Terminal and Electronic Device Using the Sensor Device
US20090283298 *Nov 19, 2009Peterson Systems International, Inc.Tapered transition ramp for cable protector
US20100282352 *May 6, 2010Nov 11, 2010Solution Finders LlcIntegrated graphical containment structure
US20100314339 *Dec 16, 2010Leviton Manufacturing Co., Inc.Equipment rack panel system and method
Classifications
U.S. Classification138/106, D25/122, 138/157
International ClassificationH02G3/04
Cooperative ClassificationH02G3/0487
European ClassificationH02G3/04H4